@media screen and (max-width: 500px) {
  header {
    margin: 40px auto 10px;
  }
  header .site-title a {
    font-size: 14px;
  }
  #main > ul > li {
    padding: 18px 0 20px;
    flex-direction: column;
  }
  #main > ul > li div.info {
    margin: 0 !important;
    margin-top: 10px !important;
    width: 100%;
  }
  #main > ul > li img {
    margin: 0;
  }
  #main > ul > li:first-child {
    margin-top: -35px;
  }
  #main h3.date {
    font-size: 11px !important;
    position: static !important;
    margin-top: 10px;
    align-self: flex-start;
  }
  #main > ul > li img.index-cover {
    width: 80% !important;
    margin: 0 !important;
    margin-top: 10px !important;
  }
  #main article.post {
    line-height: 22px;
  }
  #main article.post h1 {
    font-size: 28px;
    line-height: 34px;
  }
  #main article.post h2 {
    font-size: 22px;
    line-height: 28px;
  }
  #main article.post h3 {
    font-size: 20px;
    line-height: 25px;
  }
}
